"Michael A. Terrell" wrote:

Eeyore wrote:
dizzy wrote:
Eeyore wrote:

If the central heating is on, then you are, by definition, needing extra
heat. The heat output from lighting will mean that the room thermostat (or
radiator valves) will turn off that bit sooner.

Not really.

The heat from most lamps hangs around at ceiling level. It does sod all to warm
a room.

Wrong.

Not wrong.


Then you've never been in a TV studio, Donkey.

It's a hell of a lot hotter up where the lamps are.

Besides, TV spotlights are hardly a valid comparison with ordinary domestic lighting.

Graham